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What Are the Cheapest Sources of Protein?

5 min read

According to a 2025 analysis by NimbleFins, legumes were ranked as the most cost-effective source of protein in the UK, making the answer to the question "what are the cheapest sources of protein?" often found in your pantry. Understanding these options is essential for anyone seeking to maintain a healthy diet without overspending on groceries.

Quick Summary

This guide breaks down the most affordable protein sources available, including cost-effective plant-based foods, dairy, eggs, and budget-friendly meats. Learn smart shopping strategies to maximize your protein intake and stick to your food budget.

Key Points

  • Legumes Are a Top Budget Pick: Dried lentils and beans offer the most protein for the lowest cost, especially when purchased in bulk.

  • Eggs and Dairy Are Cost-Effective Staples: Eggs, milk, Greek yogurt, and cottage cheese provide high-quality protein affordably.

  • Buy Cheaper Cuts of Meat: Focus on chicken thighs, drumsticks, or ground turkey instead of expensive cuts like chicken breast to save money.

  • Canned and Frozen Fish Save Money: Shelf-stable canned tuna and frozen fish fillets are budget-friendly seafood options.

  • Use Smart Shopping and Meal Prep: Buying in bulk, batch cooking, and incorporating cheaper ingredients to stretch meals can significantly lower your protein costs.

In This Article

Plant-Based Powerhouses: Legumes and Tofu

Dried legumes, including lentils, beans, and chickpeas, are consistently ranked among the most economical protein sources available, often costing mere pennies per gram of protein. A single pound of dried lentils can provide a significant amount of protein for a very low price and, unlike many dried beans, they don't require presoaking, making for a quicker meal preparation. Tofu, a soy-based food, is another vegetarian and vegan favorite that offers a complete protein at an affordable price. It is incredibly versatile and absorbs the flavors of marinades and spices, making it suitable for a wide range of dishes, from stir-fries to scrambled 'eggs'. Nuts and seeds, particularly peanuts and sunflower seeds, also offer a good dose of protein for a relatively low cost, especially when purchased in bulk.

Budget-Friendly Dairy and Egg Options

Dairy products and eggs have long been considered affordable staples for protein. While egg prices can fluctuate, particularly due to factors like bird flu outbreaks, they remain a fantastic and versatile source of protein. Eggs are inexpensive, packed with nutrients like vitamins B12, D, and choline, and can be cooked in countless ways for any meal of the day. When egg prices rise, however, other dairy and egg alternatives may be cheaper per gram of protein, such as whey protein powder or cottage cheese. Dairy products like milk, Greek yogurt, and cottage cheese also provide significant, high-quality protein for a relatively low cost.

Cost-Effective Meat and Fish Choices

For those who prefer animal proteins, several budget-friendly options exist. Cuts of poultry like chicken thighs and drumsticks are often more affordable than chicken breast and offer excellent protein content. Ground turkey is another cost-effective and lean option that can be used in a variety of recipes as a substitute for ground beef. When it comes to seafood, canned tuna and salmon are both economical, shelf-stable options packed with protein and healthy fats. You can also find deals on frozen white fish, like cod or tilapia, which can be a cheaper alternative to fresh fillets. Mixing beans or lentils with ground meat can also be an effective way to stretch a smaller amount of meat across more servings.

Shopping and Meal Prep Strategies for a Budget-Friendly High-Protein Diet

To make your high-protein diet even more affordable, implement smart shopping and meal prep techniques. Buying ingredients in bulk, such as dried beans and large bags of oats, can drastically reduce your cost per serving. Another effective strategy is to batch cook and freeze meals. For instance, you can prepare a large pot of lentil soup or chili at the beginning of the week to ensure you have quick, cheap, and protein-packed meals ready to go.

Comparison of Common Protein Sources (per estimated 20g protein)

Source Serving Size (Approx.) Estimated Cost Notes
Dried Lentils/Beans 1.5-2 cups cooked ~$0.40 - $0.80 Requires cooking from dry; excellent value.
Eggs 3-4 large eggs ~$0.60 - $0.90 Price can fluctuate; highly versatile.
Canned Tuna 1 can ~$0.90 - $1.30 Convenient and shelf-stable; varies by brand and type.
Chicken Thighs 4-5 oz ~$1.00 - $1.50 Bone-in, skin-on is often cheapest.
Tofu (Extra-Firm) 5-6 oz ~$1.20 - $1.80 Versatile plant-based option.
Greek Yogurt 1.5 cups ~$1.80 - $2.50 Good for snacks; contains probiotics.

Conclusion: Your Budget-Friendly Protein Journey

Building a high-protein diet doesn't require a large budget. By focusing on staples like lentils, beans, eggs, and specific cuts of chicken, you can easily meet your nutritional needs while keeping grocery expenses in check. The key is to be a savvy shopper, embrace meal preparation, and creatively mix and match your sources, blending animal and plant-based proteins to maximize both nutrition and affordability. You can enjoy flavorful, satisfying, and protein-rich meals without compromising your health or finances. For more information on creating balanced, high-protein meals, consider consulting a source like the Physicians Committee for Responsible Medicine.

Key Takeaways

  • Legumes Reign Supreme: Dried beans, lentils, and chickpeas are the most cost-effective protein sources, particularly when bought in bulk.
  • Eggs and Dairy Offer Great Value: Eggs, milk, Greek yogurt, and cottage cheese are packed with protein and nutrients, and can often be found at a low price.
  • Smart Meat Choices Matter: Opt for cheaper cuts like chicken thighs and ground turkey or shelf-stable canned fish to get protein for less.
  • Bulk Buying Saves Money: Purchasing dried legumes, nuts, and other stable proteins in bulk significantly lowers your cost per serving.
  • Creative Cooking Stretches Ingredients: Stretch meat further by combining it with legumes in dishes like chili or use versatile options like tofu in various recipes.

FAQs

  • Q: What is the single most inexpensive source of protein? A: Generally, dried lentils and beans are considered the single most inexpensive source of protein per gram, costing much less than meat, and often less than eggs and dairy, especially when bought in bulk.
  • Q: Can a plant-based diet be high in protein and affordable? A: Yes, a plant-based diet can be very high in protein and affordable. Key sources include lentils, beans, tofu, and other soy products. Buying these items dried or in bulk helps keep costs down significantly.
  • Q: Are protein powders an affordable option? A: Some whey or plant-based protein powders can be a very affordable per-serving option, sometimes comparable to chicken or dried beans on a cost-per-gram basis, but they are not always the cheapest overall.
  • Q: How can I increase protein in my meals without breaking the bank? A: You can increase protein by adding legumes to soups and stews, mixing canned tuna into salads, or stirring cottage cheese into sauces. Eggs are also a quick and easy addition to many meals.
  • Q: What are some cheap, high-protein snack ideas? A: Affordable, protein-rich snacks include hard-boiled eggs, peanuts, cottage cheese, and roasted chickpeas. Homemade trail mix with budget-friendly nuts and seeds is another great option.
  • Q: How do I cook dried beans to get the best value? A: Cook dried beans in a large batch after soaking them. You can then freeze portions for later use. This method is far cheaper than buying canned beans and results in better texture.
  • Q: Is canned fish a good cheap protein? A: Yes, canned fish like tuna and sardines is an excellent and convenient budget protein source. It is also packed with omega-3 fatty acids and is shelf-stable.

Citations

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Frequently Asked Questions

Dried lentils and beans, such as black beans, pinto beans, and chickpeas, are generally considered the most inexpensive protein source when purchased in bulk and cooked from scratch.

While often affordable, egg prices can fluctuate due to market conditions like bird flu outbreaks. Despite occasional price increases, they remain a very cost-effective and nutrient-dense protein option.

For budget-conscious meat eaters, options like chicken thighs, drumsticks, and ground turkey offer excellent protein at a lower price point compared to chicken breast or prime cuts of beef.

Yes, canned tuna is a highly affordable and convenient source of protein that is also shelf-stable and rich in healthy fats.

To make a high-protein diet more affordable, focus on buying cheaper plant-based proteins in bulk, choosing less expensive cuts of meat and fish, and incorporating budget-friendly dairy and eggs.

Yes, you can absolutely get enough protein on a budget-friendly vegan diet. Rely on affordable staples like lentils, beans, chickpeas, tofu, and other soy products.

Milk, plain Greek yogurt, and cottage cheese are some of the most affordable dairy options for high-quality protein.

References

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Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.